University professors conducted a study of television commercials. The key research question was? "Do television advertisers use religious symbolism to sell goods and? services?" In a sample of 799 TV commercials collected in? 1998, only 14 commercials used religious symbolism. Of the 1 comma 1,505 TV commercials examined in the more recent? study, 49 commercials used religious symbolism. Conduct an analysis to determine if the percentage of TV commercials that use religious symbolism has changed since the 1998 study assuming a significance level of 0.01. If you detect a? change, estimate the magnitude of the difference and attach a measure of reliability to the estimate.
Calculate the Z-statistic and P-value